Analytical tool to predict structural and serviceability-related repairs of multi-girder concrete bridges in Nova Scotia

用于预测新斯科舍省多梁混凝土桥梁结构和适用性相关维修的分析工具

• 批准号: 551386-2020
• 负责人: Oudah, FadiFA
• 金额: $ 2.19万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=749139
• 关键词: Analytical; tool; predict; structural; serviceability

Canada's infrastructure deficit has been growing by about $2 billion a year over the past two decades as projected by a study commissioned by the Federation of Canadian Municipalities in 2001. Infrastructure including the bridge inventory in Canada continues to deteriorate over time with 80 per cent of Canada's infrastructure is past its service life. In Nova Scotia, the estimated budget for bringing all bridges to sustainable condition is $210 million per year needed over 10 years, while the actual allocated annual budget to maintain, repair, and replace bridges is $45 million as reported by Nova Scotia Department of Transportation and Infrastructure Renewal in 2019. The challenge of having limited resources to repair and maintain bridges in Canada paired with a large infrastructure deficit initiate the need to develop robust tools to risk rank existing bridge inventory to prioritize bridge repairs. The objective of the present research is to develop an analytical user-friendly tool to predict the structural and serviceability-related repairs of existing multi-girder concrete bridges in Nova Scotia. The tool will be utilized to risk rank existing bridges in Nova Scotia. The following will be considered in developing the tool: (1) it will be designed to augment the current bridge inspection practice in Nova Scotia in updating existing bridge reliability; and (2) it will utilize deterioration models specific to Nova Scotia's weather conditions. The tool will be developed in four phases as follows: document review and field inspection of select bridges in Nova Scotia (Phase I), algorithm development (Phase II), software programming (Phase III), and risk ranking of select bridges in Nova Scotia (Phase IV). Four Highly Qualified Personal (HQPs) will be trained as part of this project in the specialized area of bridge evaluation and repair. The tool will be used by the partner organizations to evaluate and repair existing multi-girder concrete bridges in Nova Scotia.

根据加拿大市政联合会2001年委托进行的一项研究，在过去20年里，加拿大的基础设施赤字每年增长约20亿美元。基础设施，包括加拿大的桥梁库存，随着时间的推移继续恶化，加拿大80%的基础设施已超过其使用寿命。在新斯科舍省，根据2019年新斯科舍省交通和基础设施更新部的报告，在10年内，将所有桥梁恢复到可持续状态的估计预算为每年2.1亿美元，而维护、维修和更换桥梁的实际分配年度预算为4500万美元。在加拿大，修复和维护桥梁的资源有限，加上基础设施严重不足，因此需要开发强大的工具，对现有桥梁库存进行风险排序，以优先考虑桥梁维修。本研究的目的是开发一种易于使用的分析工具，以预测新斯科舍省现有多梁混凝土桥梁的结构和可使用性相关维修。该工具将用于对新斯科舍省现有桥梁进行风险排名。在开发该工具时将考虑以下因素：(1)该工具的设计将增强新斯科舍省目前的桥梁检查实践，以更新现有桥梁的可靠性；(2)它将利用针对新斯科舍省天气条件的恶化模型。该工具的开发将分为四个阶段：新斯科舍省选定桥梁的文件审查和现场检查（第一阶段）、算法开发（第二阶段）、软件编程（第三阶段）和新斯科舍省选定桥梁的风险排名（第四阶段）。作为该项目的一部分，将培训四名桥梁评估和维修专业领域的高素质人员（HQPs）。该工具将被合作伙伴组织用于评估和修复新斯科舍省现有的多梁混凝土桥梁。